Journal ArticleDOI
Effect of laser energy density on the microstructure, mechanical properties, and deformation of Inconel 718 samples fabricated by selective laser melting
TLDR
Inconel 718 samples were fabricated by selective laser melting (SLM) and the effects of line laser energy densities in the range 0.1-0.3 µm on the microstructure, mechanical properties, and deformation of these samples were investigated as mentioned in this paper.About:
This article is published in Journal of Alloys and Compounds.The article was published on 2019-05-25. It has received 87 citations till now. The article focuses on the topics: Selective laser melting & Ultimate tensile strength.read more
Citations
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Journal ArticleDOI
Scanning strategy in selective laser melting (SLM): a review
TL;DR: In this article, the scanning strategy plays an important role in the microstructures, mechanical properties, and residual stresses of 3D printed parts and some suggestions on the optimization of scanning strategy for better performance are provided based on the above analysis.
Journal ArticleDOI
Progress and perspectives in laser additive manufacturing of key aeroengine materials
TL;DR: In this paper, the authors provide a critical and in-depth evaluation of laser powder bed fusion (LPBF) and laser directed energy deposition (LDED) technologies of the mentioned aeroengine materials.
Journal ArticleDOI
CoCr alloy processed by Selective Laser Melting (SLM): effect of Laser Energy Density on microstructure, surface morphology, and hardness
TL;DR: In this paper, a correlation between LED value and density, surface quality, micro-structural features and hardness of SLM parts was defined, and the final goal was to identify, for the biomedical Co-28Cr-6Mo alloy, the optimal LED window to be considered in order to maximize the overall quality of the parts.
Journal ArticleDOI
The effect of energy density on texture and mechanical anisotropy in selective laser melted Inconel 718
TL;DR: In this paper, the energy density dependence of texture anisotropy and mechanical properties processed by selective laser melting (SLM) of IN 718 superalloy at different laser scanning speeds was investigated.
Journal ArticleDOI
Laser Powder Bed Fusion of Inconel 718: Residual Stress Analysis Before and After Heat Treatment
Rafael Barros,Francisco Silva,Ronny Miguel Gouveia,Abdollah Saboori,Giulio Marchese,Sara Biamino,Alessandro Salmi,Eleonora Atzeni +7 more
TL;DR: In this article, hole-drilling strain-gage method was used to determine the residual stresses (RS) and direction-depth profiles of parts produced by Laser Powder Bed Fusion (PBF-LB).
References
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Journal ArticleDOI
The status, challenges, and future of additive manufacturing in engineering
Wei Gao,Yunbo Zhang,Devarajan Ramanujan,Karthik Ramani,Yong Chen,Christopher B. Williams,Charlie C. L. Wang,Yung C. Shin,Song Zhang,Pablo D. Zavattieri +9 more
TL;DR: Future directions such as the "print-it-all" paradigm, that have the potential to re-imagine current research and spawn completely new avenues for exploration are pointed out.
Journal ArticleDOI
Microstructures and mechanical behavior of Inconel 718 fabricated by selective laser melting
Krista Amato,Sara M. Gaytan,Lawrence E Murr,E. Martinez,P. W. Shindo,Jennifer Hernandez,S. Collins,Francisco Medina +7 more
TL;DR: In this paper, the Inconel 718 cylinders were fabricated by selective laser melting in either argon or nitrogen gas from a pre-alloyed powder, and they exhibited columnar grains and arrays of oblate ellipsoidal precipitates oriented in a strong [2.0.0] texture determined by combined optical metallography, transmission electron microscopy, and X-ray diffraction analysis.
Journal ArticleDOI
The microstructure and mechanical properties of deposited-IN718 by selective laser melting
TL;DR: In this paper, the starting material, manufacturing processes, heat treatment and characterization procedures of mechanical properties are presented, and the microstructure is crucial for the mechanical properties of IN718.
Journal ArticleDOI
Effect of heat treatment on the microstructure and mechanical properties of Inconel 718 processed by selective laser melting
TL;DR: The microstructural and mechanical properties of Inconel 718 were determined on the specimens manufactured by selective laser melting (SLM) of prealloyed powder as mentioned in this paper, showing that columnar grains of supersaturated solid solution with internal microsegregation of Nb and Mo, demonstrated by fractions of Laves eutectic or its divorced form in interdendritic regions.
Journal ArticleDOI
Microstructural and texture development in direct laser fabricated IN718
TL;DR: In this article, microstructural characterisation was performed for IN718 thin-walled builds, produced using direct laser fabrication (DLF), to understand the influence of the variations in the deposition path and the laser power on the microtexture, grain structures and intermetallic particle morphology development.